The issue of vagueness is summarized in a more technical way by the philosopher Karl Popper who described--who introduced the term of falsifiability.

关于概念模糊的问题,哲学家卡尔·波普用一个更加专业的术语,进行了总结,他提出了“可证伪性“这个术语。

耶鲁公开课 - 心理学导论课程节选

But not for the sake of hashing through the history of philosophy not for the sake of analyzing philosophical concepts the way analytical philosopher would, but rather,with that kind of background preparation, seeing things that others might not.

不是为了深入讨论,哲学的历史,不是为了像,一个分析哲学家那样,分析哲学概念，而是在有了那种背景知识的准备后，看到一些别人可能看不到的东西。

麻省理工公开课 - 电影哲学课程节选